Mongar (Dzongkha: མོང་སྒར) is a town and the seat of Mongar District in eastern Bhutan.[1] The population of Mongar Dzongkhag in 2022 was estimated at 36,383, comprising 17,498 males and 18,886 females. It included 10,084 residing in urban centres of Mongar, Gyalpoizhing, Lingmithang, Kidheykhar, Drametse and Yadi towns. The rural population across 17 Gewogs was of 26,299.[2] Mongar is on the road from Thimphu to Trashigang. It is one of the oldest educational hubs of the country. It has a regional hospital and a good standard hotel, among other facilities. The important Yagang Lhakhang monastery is on the outskirts of the town.[citation needed] The post code for Mongar post office is 43001.[3] The ruins of Zhongar Dzong are located on the outskirts of Mongar.[4] The Dzong has been in ruins since 1889.[4]